Machine



2 Sheets-Sheet 1.

(No Model.)

G. E. SMITH. RAIL BBNDING MACHINE.

No. 558,705. Patented Apr. 21, 1896.

e l M' Nimm/Ey:

AN DREW E4 GRAHAM, PNGTDMMO WASHINGTDN. D C

(No Model.)

G. asn/11TH. RAIL BENDING MACHINE.

VPatgnte-d Api?. 2'1, 1896.

/flflr moe/vers.

ANUREW ECRAN/M. MOTO mno WASHINGTGNJI C Vrailroad Work.

llNirnn Srnlrns GEORGE E. SMITH, OF SHERBROOKE, CANADA.

RAIL-BENDING MACHINE.

SPECIFGATION'forming part of Letters Patent No. 558,705, dated April 21,1896. Application iilecl December 7, 1895. Serial No. 571,397. (Nomodel.)

To LZZ whom t may concern.-

Beit known that I, GEORGE E. SMrri-r, a subject of the Queen of GreatBritain, and a resident of Sherbrooke, in the Province of Quebec andDominion of Canada, have invented certain new and useful Improvements inRail-Bending Machines; and I do hereby declare that the following is afull, clear, and exact description of the invention, Which Will enableothers skilled in the art to Which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersand figures of reference marked thereon, Which form a part of thisspecification.

My invention is a further improvement on my Patent No. 537,790, datedApril 1G, 1895. The machine therein described was intended moreespecially for bending rails for steam- My present invention is intendedto adapt that machine more part-icularly to the bending of rails used instreetrailWays; and to this end it may in a general Way be said toconsist in combining with many of the features shown in that patentcertain other devices not shown or described therein, the structure alsorequiring a different position of some of the parts of that machine,including the placing of some of its vertical shafts horizontally andhorizontal ones vertically, and having certain beveled drivinggears andadjustable yoke-straps carrying guide-rollers- In the drawings, Figure 1illustrates a front view, Fig. 2 an end View, and Fig'. 8 a plan or topview, of my improved machine; Fig. 4,1a detail.

In the present improvements A represents a frame for supporting themechanism; A', the adjusting-screw, placed horizontally and serving tosupport the socket-piece Awhich carries the middle or feed roller 3a;A2, the gear on screWA; .A3, the socket-piece or crosshead; A5, guidesfor this cross-head; B3, a horizontal short shaft carrying a pinion B',and also a bevel-gear 1 and a crank-handle L.

B is a short vertical shaft carrying a bevelpinion 2 and a largehand-Wheel B2.

O is a vertical shaft carrying the large gear D, which engages with apinion E on another vertical shaft I), one end of which has its bearingsin the frame A.

J is a bevel-gear on the shaft P and is driven by the bevel-pinion J onthe power-shaft F, which carries the tight and loose pulleysI G G.

The friction rail-bending rollers are shown at 3 3 3, each of them beingon a vertical axis and the middle one, 3, being located at one side ofand not, as in my patent, above the others.

K is a sliding box on the vertical shaft O, to hold properly the upperend of this shaft, and it is adapted to be slid back and forth With theWheel D and cross-head when taking a rail in or out. l

M is a bracket-box carrying the shaft B; N, a bridge-tree carrying theboxes for supporting the horizontal shaft F and the vertical shaft P. ao are openings in the casting to admit the gear. This bridge-tree hasvertical legs, which are firmly secured to the main frame, as shown, andhas in one of these legs an opening for the box or bearing of the shaftF and in its top and about centrally another opening for the box orbearing of the vertical shaft P.

II H are horizontal guide or friction rollers to facilitate the passageof the rail through the machine, and they are supported in yokestraps oreyebolts I, which are vertically adjustable, as shoWn,by nuts fi, whichsecure them to the frame. By these means these rollers may be raised orlowered as need be to adapt them to the varying height ofdifferent-sized rails. These yokes may if desired have their eyes neartheir lower ends and be supported in the frame at top and bottom bymeans of nuts, as shown in Fig. 4.

The base or bottom bed in the present niachine corresponds,substantially, to one of the sides of my patented machine, or, in otherWords, it is somewhat as if that machine were turned over to one side orgiven a quarterturn and had my improvements therein.

It Will be seen that the axis of each of `the bending-rollers 3 3 3,being vertical instead of horizontal, these rollers can take the railwith its right side or tread uppermost when under treatment, and thatwhen fed through the machine and bent the rail still remains IOO for allits length in a horizontal plane, and so that its end may be readilywithin the workmans reach and handled, and the rail is thus preventedfrom being curved upward out of reach and convenient handling.

The contours of the ends of the rolls, as also the height of roll 3relatively to that of rolls 3 3, are adapted, as will be seen in Fig. 2,to the base or bottom flange and also to the top part or tread of therail, while the periphery of the rolls is adapted for the web orvertical portion of the rails.

A rail is shown at R in Fig. 2 in cross-section in the position itoccupies in the machine, its web being vertical.

The handle L is for throwing` the screw in or out more rapidly than bythe hand-wheel and bevel-gears 2 l. Vhen,however,the pressure of thescrew begins to bear upon a rail, the hand-wheel needs then to be usedto give the requisite power.

From the above it will be seen that there are two outside beveldriving-gears J J, one small and the other large, receiving motion fromthe pulley-shaft, and other two outside bevel-gears l 2, one sm all andthe other large, the smaller one, 2, by the agency of the largehand-wheel B2 and short-shaft B imparting motion to the larger4bevel-gear 1 and to the pinion B on its shaft, which then actuates thelarge gear A2 to move as may be desired the horizontal screw A, and thuschange as may be needed the position of the middle bending-roller 32.

Relatively to the devices shown in my patent I lind a great gain ofpower by these compound gears. In that patent no bevel-gears are usedfor any purpose.

In the present machine I have shown fast and loose pulleys G G in placeof a clutchpulley and clutch, and placed the drivingshaft F and theroller-shaft at right angles to each other instead of parallel.

I make no broad claim to two non-adjustable rolls and an intermediateadjustable roll, as such are shown in my above-named patent; but

I claiml. In a power-machine for bending rails, the combination withrolls 3 3, and with an intermediate and adjustable power-driven bendingand feeding roll, of a bracket M, supporting a short shaft B, itshand-wheel and a bevel-gear 2, a short shaft carrying a bevelgear 'l andpinion B', the screw A and its gear A2, and the cross-head carrying saidpowerdriven bending-roll, all substantially as and for the purpose setforth.

2. In a power-machine adapted for bending rails and in which theadjustable middle rail only is positively driven to feed the rail, thecombination with the screw carrying the adj ustin g-gear A2 and thecross-head which supports such middle roll, of the short shaft carryinga pinion B', the bevel-gear l, and a handle L, and the short shaft B,carrying a hand-wheel B2, and a pinion 2, the combination serving toallow the cross-head and its middle roll to be rapidly adjusted by thehandle in commencing the adjustment, and to bc finally adjusted by thehand-wheel when the pressure of the middle roll given by the screwbegins to bear upon the rail.

GEORGE E. SMITH. lVitnesses:

Guo. OROURKE, L. J. BRoDERIcK.

